verified adc

Northeastern-Electric-Racing · Apr 10, 2024 · 5734323 · 5734323
1 parent d5ad534
commit 5734323
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Showing 3 changed files with 24 additions and 17 deletions.
diff --git a/Core/Inc/bmsConfig.h b/Core/Inc/bmsConfig.h
@@ -2,9 +2,9 @@
 #define BMS_CONFIG_H
 
 // Hardware definition
-#define NUM_SEGMENTS        4
-#define NUM_CHIPS           NUM_SEGMENTS*2
-#define NUM_CELLS_PER_CHIP  9
+#define NUM_SEGMENTS        6
+#define NUM_CHIPS           NUM_SEGMENTS* 2
+#define NUM_CELLS_PER_CHIP  10
 #define NUM_THERMS_PER_CHIP 32
 #define NUM_RELEVANT_THERMS 5
 

diff --git a/Core/Src/compute.c b/Core/Src/compute.c
@@ -69,7 +69,8 @@ uint8_t compute_init()
 	HAL_TIM_PWM_Start(&htim8, fan_channels[FAN5]);
 	HAL_TIM_PWM_Start(&htim8, fan_channels[FAN6]);
 
-	HAL_ADC_Start_DMA(&hadc1, adc_values, 2);
+	//HAL_ADC_Start(&hadc1);
+	//HAL_ADC_Start_DMA(&hadc1, adc_values, 2);
 
 	return 0;
 
@@ -165,25 +166,27 @@ int16_t compute_get_pack_current()
 
 
 	/* starting equation : Vout = Vref + Voffset  + (Gain * Ip) */
-	float ref_voltage = -1;
-	float vout = -1;
+	//float ref_voltage = -1;
+	//float vout = -1;
 
-	if (!HAL_DMA_PollForTransfer(&hdma_adc1, HAL_DMA_FULL_TRANSFER, HAL_MAX_DELAY))
-	{
-		ref_voltage = adc_values[1] * 2.5 / MAX_ADC_RESOLUTION;
-		vout = adc_values[0] * 3.3 / MAX_ADC_RESOLUTION;
-	}
+	// if (!HAL_DMA_PollForTransfer(&hdma_adc1, HAL_DMA_FULL_TRANSFER, HAL_MAX_DELAY))
+	// {
+	// 	ref_voltage = 2.5;//adc_values[1] * 2.5 / MAX_ADC_RESOLUTION;
+	// 	vout = adc_values[0] * 3.3 / MAX_ADC_RESOLUTION;
+	// }
 
+
 	// remove once DMA verified working, along with functions themselves 
 
-	// float ref_voltage = read_ref_voltage();
-	// float vout = read_current();
+	float ref_voltage = read_ref_voltage();
+	float vout = read_vout();
+	vout *= 1000; // convert to mV
 
-	if (ref_voltage == -1 || vout == -1) return -1;
+	//if (ref_voltage == -1 || vout == -1) return -1;
 
 	int16_t current = (vout - ref_voltage - OFFSET) / (GAIN / 1000); // convert to V
 
-	return -current;
+	return vout;
 
 	/* TEMP keep last years math until above is verified */
 

diff --git a/Core/Src/main.c b/Core/Src/main.c
@@ -267,7 +267,11 @@ int main(void)
      * Not state specific
      */
     segment_retrieve_data(acc_data->chip_data);
-    acc_data->pack_current = compute_get_pack_current();
+    acc_data->pack_current = (int16_t)compute_get_pack_current();
+    //volatile float temp = compute_get_pack_current();
+    printf("Pack Current: %d\r\n", acc_data->pack_current);
+
+
 
     /* Perform calculations on the data in the frame */
     analyzer_push(acc_data);
@@ -282,7 +286,7 @@ int main(void)
     HAL_GPIO_WritePin(Watchdog_Out_GPIO_Port, Watchdog_Out_Pin, GPIO_PIN_RESET);
 
     #ifdef DEBUG_STATS
-    print_bms_stats(acc_data);
+    //print_bms_stats(acc_data);
     #endif
 
     // TODO - possibly optimize timing, every loop might be excessive